The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
corosync-qnetd – QNet daemon Synopsis corosync-qnetd [-46dfhv] [-l listen_addr] [-p listen_port] [-s tls] [-c client_cert_required] [-m max_clients] [-S option=value[,option2=value2,…]] Description corosync-qnetd is a daemon running outside of the cluster with the purpose of providing a vote to the corosync-qdevice model net. It’s designed to support multiple clusters and be almost configuration and state free. New…
corosync-qnetd-tool – corosync-qnetd control interface. Synopsis corosync-qnetd-tool [-Hhlsv] [-c cluster_name] [-p qnetd_ipc_socket_path] Description corosync-qnetd-tool is a frontend to the internal corosync-qnetd IPC. Its main purpose is to show important information about the current internal state of corosync-qnetd. Options -H Properly shutdown the corosync-qnetd process -h Display a short usage text -l List all clients connected…
corosync-qnetd-certutil – tool to generate qnetd TLS certificates Synopsis corosync-qnetd-certutil [-i|-s] [-c certificate] [-n cluster_name] Description corosync-qnetd-certutil is a frontend for the NSS certutil, it is used for generating the QNetd CA (Certificate Authority), server certificate and signing cluster certificate used by corosync-qdevice when using the model ‘net’. Options -i Initialize the QNetd NSS certificate…
corosync-qdevice – QDevice daemon Synopsis corosync-qdevice [-dfh] [-S option=value[,option2=value2,…]] Description corosync-qdevice is a daemon running on each node of a cluster. It provides a configured number of votes to the quorum subsystem based on a third-party arbitrator’s decision. Its primary use is to allow a cluster to sustain more node failures than standard quorum rules…
corosync-qdevice-tool – corosync-qdevice control interface. Synopsis corosync-qdevice-tool [-Hhsv] [-p qdevice_ipc_socket_path] Description corosync-qdevice-tool is a frontend to the internal corosync-qdevice IPC. Its main purpose is to show important information about the current internal state of corosync-qdevice. Options -H Properly shutdown the corosync-qdevice process -h Display a short usage text -s Display the status of the corosync-qdevice…
corosync-qdevice-net-certutil – tool to generate qdevice model net TLS certificates Synopsis corosync-qdevice-net-certutil [-i|-m|-M|-r|-s|-Q] [-c certificate] [-n cluster_name] Description corosync-qdevice-net-certutil is a frontend for NSS certutil used for generating client certificate for the net model of qdevice. Options -i Initialize the QDevice Net NSS certificate database. The default directory for the database is /etc/corosync/qdevice/net/. This directory…
corosync-pload – Start payload test. Synopsis corosync-pload Description corosync-pload starts the pload service. This is used as a test tool to generate traffic. All nodes will begin transmitting messages and they will stop when 1500000 messages have been received per node. To view the progress of this execute: $ corosync-objctl runtime.services.pload. runtime.services.pload.service_id=13 runtime.services.pload.0.tx=3 runtime.services.pload.0.rx=2 runtime.services.pload.1.tx=2478788…
corosync-objctl – Configure objects in the Object Database Synopsis corosync-objctl [-c|-w|-d|-a|-t-h] <OBJECT-SPEC>… Description corosync-objctl is used to configure objects within the object database at runtime. Object-Spec There are two types of entities Objects and Key=Value pairs Objects Objects are container like entities that can hold other entities. They are specified as "objectA"."objectB". An example is…
corosync-notifyd – Listen for important corosync events and send dbus and/or snmp traps. Synopsis corosync-notifyd [-f] [-l] [-o] [-s] [-m] [manager] [-d] [-h] Description corosync-notifyd uses corosync API to listen for important cluster events and can log them, generate dbus signals or genterate snmp traps. Options -f Start application in foreground. -l Log all events….
corosync-keygen – Generate an authentication key for Corosync. Synopsis corosync-keygen [-k <filename>] [-l] Description If you want to configure corosync to use cryptographic techniques to ensure authenticity and privacy of the messages, you will need to generate a private key. corosync-keygen creates this key and writes it to /etc/corosync/authkey or to file specified by -k…
corosync-fplay – Display "flight data" from the corosync "blackbox". Synopsis corosync-fplay Description corosync-fplay Print out the logs (including debug logs) that were recorded before the last corosync crash. Examples Get info to help developers diagnose a crash. $ corosync-fplay Starting replay: head [74205] tail [0] rec=[1] Log Message=Corosync Cluster Engine (‘1.2.1’): started and ready to…
corosync-cpgtool – A tool for displaying cpg groups and members. Synopsis corosync-cpgtool [-d delimiter] [-e] [-n] [-h] Description corosync-cpgtool A tool for displaying cpg groups and members. Options -h Display this help. -d Delimiter between fields. -e Don’t escape unprintable characters in group name -n Display only all existing group names. Examples Display the groups…
corosync-cmapctl: – A tool for accessing the object database. Description usage: corosync-cmapctl [-b] [-dghsTtp] [params…] -b show binary values Set key: corosync-cmapctl -s key_name type value where type is one of ([i|u][8|16|32|64] | flt | dbl | str | bin) for bin, value is file name (or – for stdin) Load settings from a file:…
corosync-cfgtool – An administrative tool for corosync. Synopsis corosync-cfgtool [-i] [IP_address] [-s] [-r] [-l] [-u] [-H] [service_name] [-v] [version] [-k] [nodeid] [-a] [nodeid] Description corosync-cfgtool A tool for displaying and configuring active parameters within corosync. Options -h Print basic usage. -i Finds only information about the specified interface IP address. -s Displays the status of…
corosync-blackbox – Dump live "flight data" from the corosync "blackbox". Synopsis corosync-blackbox Description corosync-blackbox Trigger corosync to write it’s "flight data" out to file and then run qb-blackbox which prints it out. Examples Print the current "flight data". $ corosync-blackbox Starting replay: head [74205] tail [0] rec=[1] Log Message=Corosync Cluster Engine (‘1.2.1’): started and ready…
convertquota – convert quota from old file format to new one Synopsis convertquota [ -ug ] -e filesystem convertquota [ -ug ] -f oldformat,newformat filesystem Description convertquota converts old quota files quota.user and quota.group to files aquota.user and aquota.group in new format currently used by 2.4.0-ac? and newer or by SuSE or Red Hat Linux…
controlchan – Channel-fed control message handler Synopsis controlchan [-ch] Description controlchan removes the responsibility for handling control messages (except cancels) from innd and instead processes them from a channel or file feed. The two Perl modules "Encode" and "MIME::Parser" are required by controlchan. To reduce load, controlchan keeps a copy of control.ctl and control.ctl.local in…
containerd-config – information on the containerd config Synopsis containerd config [command] Description The containerd config command has one subcommand, named default, which will display on standard output the default containerd config for this version of the containerd daemon. This output can be piped to a containerd-config.toml(5) file and placed in /etc/containerd to be used as…
consoletype_selinux – Security Enhanced Linux Policy for the consoletype processes Description Security-Enhanced Linux secures the consoletype processes via flexible mandatory access control. Nsswitch Domain File Contexts SELinux requires files to have an extended attribute to define the file type. You can see the context of a file using the -Z option to lsP Policy governs…
consolekit_selinux – Security Enhanced Linux Policy for the consolekit processes Description Security-Enhanced Linux secures the consolekit processes via flexible mandatory access control. The consolekit processes execute with the consolekit_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…